31471120452 has 24 divisors (see below), whose sum is σ = 74159672832. Its totient is φ = 10386508000.

The previous prime is 31471120433. The next prime is 31471120453. The reversal of 31471120452 is 25402117413.

It is not an unprimeable number, because it can be changed into a prime (31471120453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12981924 + ... + 12984347.

It is an arithmetic number, because the mean of its divisors is an integer number (3089986368).

Almost surely, 2^31471120452 is an apocalyptic number.

It is an amenable number.

31471120452 is an abundant number, since it is smaller than the sum of its proper divisors (42688552380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31471120452 is a wasteful number, since it uses less digits than its factorization.

31471120452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25966379 (or 25966377 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 31471120452 its reverse (25402117413), we get a palindrome (56873237865).

The spelling of 31471120452 in words is "thirty-one billion, four hundred seventy-one million, one hundred twenty thousand, four hundred fifty-two".